webpack-bundle-analyzer/lib/sizeUtils.js

Webpack plugin and CLI utility that represents bundle content as convenient interactive zoomable treemap

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getCompressedSize = getCompressedSize;
exports.isZstdSupported = void 0;
const zlib = require('zlib');
const isZstdSupported = exports.isZstdSupported = 'createZstdCompress' in zlib;
function getCompressedSize(compressionAlgorithm, input) {
  if (compressionAlgorithm === 'gzip') return zlib.gzipSync(input, {
    level: 9
  }).length;
  if (compressionAlgorithm === 'brotli') return zlib.brotliCompressSync(input).length;
  if (compressionAlgorithm === 'zstd' && isZstdSupported) {
    return zlib.zstdCompressSync(input).length;
  }
  throw new Error(`Unsupported compression algorithm: ${compressionAlgorithm}.`);
}